The Cairngorms are Britain's premier mountain range. Their scale, their altitude, and their value as wilderness country - for recreation and for nature conservation - are without equal in these islands. They stand near the centre of Scotland, between the straths of the rivers Dee and Spey.
PDF map available for downloading
The map is about Transboundary Aquifers (TBAs). It shows the present state of information regarding the occurrence and extent of TBAs world-wide. The intention of the map is to provide a global overview of these important shared water resources and to encourage their further assessment. The back of the map contains an introduction to a methodology for assessment of TBAs
In southern Utah, the Colorado River, halted by Arizona’s Glen Canyon Dam, creates Lake Powell, a meandering, narrow reservoir that follows the contours of the river. In the early twenty-first century, this modern marvel of engineering faced an ancient enemy: severe, prolonged drought in the American Southwest. Combined with water withdrawals that many believe are not sustainable, the drought has taken its toll on Lake Powell water levels.